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Gas boiler flue gas treatment and purification device

A flue gas treatment and purification device technology, which is applied in the direction of waste gas exhaust device, combustion product treatment, combustion method, etc., can solve the problems of expensive replacement of low-nitrogen burner, influence of gas boiler heat exchange structure, etc., and achieve simple structure, Low cost and long service life

Active Publication Date: 2018-11-09
北京中知高科科技有限公司
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Problems solved by technology

However, due to the high cost of replacing the low-nitrogen burner; the addition of flue gas recirculation will also have a certain impact on the heat exchange structure of the gas boiler itself

Method used

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  • Gas boiler flue gas treatment and purification device
  • Gas boiler flue gas treatment and purification device
  • Gas boiler flue gas treatment and purification device

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Embodiment Construction

[0023] The gas-fired boiler flue gas treatment and purification device of the present invention mainly includes a nitrogen oxide capture device and a cylindrical shell 1, the capture device is arranged in the cylindrical shell 1 along the axis of the cylindrical shell, and the two ends of the cylindrical shell 1 open and directly connected to the flue gas pipeline; the nitrogen oxide capture device includes a high-energy ultraviolet generating device 2 and a flue gas adsorption device 3, 4, and the high-energy ultraviolet generating device 2 is respectively arranged in the flue gas adsorption device 3 , Before 4; said flue gas adsorption device is provided with many flue gas passages, and the outer surface of said flue gas passages is coated with a layer of titanium dioxide.

[0024] The cylindrical shell 1 can be cylindrical or square or other shapes. For existing gas boilers, it is best to be consistent with the original flue gas duct structure shape, so as to facilitate inst...

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Abstract

The invention discloses a smoke treatment and purification device for a gas boiler. The device comprises a nitric oxide catching device and a columnar shell. The catching device is arranged in the columnar shell along the axis of the columnar shell. The two ends of the columnar shell are connected with a smoke pipeline. The nitric oxide catching device comprises a high-energy ultraviolet generating device and a smoke adsorbing device. The high-energy ultraviolet generating device is arranged in front of the smoke adsorbing device. A plurality of smoke channels are formed in the smoke adsorbing device. The outer surface of each smoke channel is coated with a layer of titanium dioxide. Compared with the prior art, the national nitric oxide emission standard can be reached by simply modifying an original gas boiler, and the purification device is simple in structure, easy to manufacture, low in cost, long in service life, low in engineering modification cost and high in efficiency.

Description

technical field [0001] The invention relates to a device for treating and purifying waste gas in flue gas discharged after fuel combustion, in particular to a device for treating and purifying nitrogen oxides in flue gas discharged after combustion of natural gas boilers. Background technique [0002] In recent years, smog and haze have occurred frequently all over the country, seriously affecting people's health. The causes of smog are various, but one of the main reasons is that the nitrogen oxides produced by the combustion of gas boilers are one of the culprits of atmospheric smog. At present, various provinces and cities in my country have set the NOx emission limit to 80-100mg / m³, but because most of the existing natural gas boilers in my country basically do not use low-nitrogen burners, a considerable part of the natural gas boilers have nitrogen oxide emission levels of 100 ~120mg / m³, or even higher. To achieve this standard, although it can be achieved by modifyin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23J15/02F23J13/00
CPCF23J15/022F23J15/025F23J2213/00F23J2215/00F23J2215/10
Inventor 耿直杨骏臣陈昊金可
Owner 北京中知高科科技有限公司
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